Brennan Heating & Air Conditioning has proudly served Western Washington residents since 1987. We offer a wide range of home comfort and electrical solutions, including furnaces, air conditioners, heat pumps, select gas fireplaces, indoor air quality products, water heaters, panel upgrades, lighting installations, EV chargers, and more. No matter your heating, cooling, or electrical needs, our energy consultants will help you find the right products at the right price. We stand behind our workmanship and treat your home with the care and respect it deserves. Our knowledgeable, certified technicians are dedicated to keeping your equipment running efficiently for years to come. Schedule your service today online or call 877-BRENNAN!
Technicians are consistently described as professional, knowledgeable, and friendly, providing thorough explanations of their work.
Customer Service
Customers appreciate the prompt and responsive customer service, with many noting effective communication and follow-up.
Quality of Work
The quality of service and repairs is frequently praised, with many customers expressing satisfaction with the thoroughness and effectiveness of the technicians.
Timeliness
Brennan Heating & Air Conditioning is noted for being punctual and completing jobs in a timely manner.
Long-term Relationships
Many customers have been loyal for years, indicating a strong track record of reliability and satisfaction with the company's services.
JS
J Shea
4 days ago
5.0
Professional, polite, caring, knowledgeable and on time! Duct work cleaning was quick yet thorough. Furnace maintenance was great. Both technicians took the time to answer all of my questions and concerns and went above and beyond, in my opinion. A+
MZ
Ming Zhong
6 days ago
5.0
Installed new furnace with Brennan Heating (via Costco) last December. The staff came over for free maintenance (for the first 2 years) this week. Great and professional service!
AK
amber kubin
Dec 8, 2025
5.0
Had our yearly maintenance done on our whole hvac system. Everything was checked out within about a hour. Person came within the window time and received a text when they were on their way. Only thing I’d have changed would be an eta for arrival.
KK
KM
Dec 4, 2025
5.0
The experience was flawless. The two guys that replaced my water heater were extremely nice, thorough, and knowledgeable. I appreciate the fast service and friendly faces. I can't recommend enough.
DS
Diana Shinn
Nov 20, 2025
5.0
We decided to go through Costco's program to upgrade our HVAC system (that didn't have A/C!) to a heat pump after going through an extremely hot summer. What a great decision, and part of what made it great is Brennan Heating & Air Conditioning! Installation was completed on time and with great care. The system has provided us with both heating and air conditioning that is much quieter than the old HVAC unit, consistent, and responsive when we need a little extra heat or cooling, and with a UV air purification component.
Brennan's service has been stellar, performing annual maintenance, duct cleaning, thoroughly checking all of the systems, and responding promptly when a problem popped up - ice formed during a cold, rainy snap (not due to equipment malfunction - rather due to needing a little protection from the rweather). Their customer services reps are quick to respond when contacted. Our most recent maintenance was performed by Dom - a polite young man who was respectful in our home and really provided excellent, knowledgeable service.
Frequently Asked Questions About Brennan Heating, Air Conditioning, & Electric
What services does Brennan Heating, Air Conditioning, & Electric offer?
Brennan Heating, Air Conditioning, & Electric offers heating, cooling, and electrical solutions including furnaces, air conditioners, heat pumps, gas fireplaces, indoor air quality products, water heaters, panel upgrades, lighting installations, and EV chargers.
Where is Brennan Heating, Air Conditioning, & Electric located?
The business is located at 6414 204th St SW, Suite 200, Lynnwood, WA 98036, USA.
What are the business hours of Brennan Heating, Air Conditioning, & Electric?
They are open Monday to Friday from 8:00 AM to 5:00 PM and closed on Saturdays and Sundays.
Since when has Brennan Heating, Air Conditioning, & Electric been serving Western Washington?
They have been proudly serving Western Washington residents since 1987.
How can I schedule a service appointment with Brennan Heating, Air Conditioning, & Electric?
You can schedule a service appointment by calling 877-BRENNAN or scheduling online through their website.
What is the phone number to contact Brennan Heating, Air Conditioning, & Electric?
The main phone number is +1 206-248-7900.
What kind of qualified technicians does Brennan Heating, Air Conditioning, & Electric have?
They have knowledgeable, certified technicians dedicated to keeping your equipment running efficiently for years.
Which nearby bakery can I visit after my appointment at Brennan Heating, Air Conditioning, & Electric?
You can visit Olson Baking Company or Olson Capital, both well-known bakeries nearby.
Are there automotive services near Brennan Heating, Air Conditioning, & Electric if I need car repairs?
Yes, nearby places like Seapac Auto, Reyes Auto Body Repair, and Dan Fast Muffler and Brake offer automotive repair services.
What nearby food options are available close to Brennan Heating, Air Conditioning, & Electric for a quick meal?
Nearby you can find Mexican restaurants such as El Antojo, Mexican Food El Antojo Lynnwood, and Taqueria El Antojo for a delicious meal.